johnson



'gintch tzttre @anni @ffice Leiters .Pat/mt No. 73,979, dated February 4, 1868; antedatedFebruary 1, 1868. I

IMPROVEMENT In oonn-conrrvsross.

itin rtemile retentit tu is 3mm @met une making part 'et the same.

Bo it. known' that I, NATHAN S. JOHNSON, of Maquoketa, in the county of Jackson, and State'of Iowa, have invented a new and useful Machine for Cultivating Corn; and I do hereby declare that the following is a full, clear, and exact dcscriptiorrof the construction and 'operation of the same, reference-being had 'to theannexed v drawings, making a part of this specification, in whichy Figure 1- i's a? perspective View;

Figure 2 is an 'end elevation. l

Figure 3, a sidoelepvation of a part of the machine.

Figure 4, a plan o' the shovel-beams.

I construct the macliineas follows: Th'e axles are formed of two short pieces ofptimber, '.B B, iig. 1, having attached'the four upright standards A A A A, and are connected together ct their upper ends by the beam'S. The standards; A are bored throughout' their entire lengths, for the purpose of receiving' bolts, by mesusof which and thenuts vE E thdcntire axleissecurely fastened together. Y Attached to the axle, at the junctional?d ,ff/"4 l the two outside standards, are two beams',Y,-placed in a triangular position, and joined to t l 1g/ton'gue''at/G.

'Tojthe faces of Vthe two beams Y Y is 'socuredthe cross-bar Z; The'cnds of this hai-extend over the sides of the beams, for the purpose of receiving the upper ends of the m/olahleretmdds or pivots C C. On either side of the standards() C are placed two beams, D 'Ilie"tvbfeamsD D are connected together et R,V iig.A 4, by Vmeans of a wooden brace, having 'on itsebac'k/edge the staple Q They are also connected .together by means4 of the stirrup P, at each end of thebeam.- The tvvo shovels II 'are secured tothe beam's b'yinosns of short wooden standards and .braeirong as shown' stD, fic. 1.l Bolted to the upper surface of4 the beams Y Ylare two ley/ers, extended back, to supportthe seatgboard I`. This is A suspended by means' of the two'irons K K,

having at their upper c nds 4holesvto receveAron pins, resting on the upper surface of the helm S, und forming pivots which allow /fxfeo lateral motion tothe levers and seat-board I. To the under surface of the seat-levers are attached the ,tivo short levers LIL, having their fulcrum, consisting of tivo bolts, attached tothe axlebars- B B. .The opposite cnds of the lovers pass downward through the staple Q, shownat 4, so that if the seat; be deflected to either side, the levers L L will move thc -sho-vcls H H in a. direoticznr 'contrary to the motion of the seat, The use of the lcverlhI is to raise the shovels by means'of the chains O O. 1

The operation of the machine isos-follows: Thosaxle' ofthe inachine being' constructed as above described, permits the operator, sca-ted' in thc seatboard I, to have an unobstructed-view, through the centra. opening betnieen the axles, of the'ycoi'nhills 4in advance of the ofne's operated upon by the shovels] and allows the operator to determine, in advance, t-he'xnovement of the ploughs that will be `rigecessary `to properly -culti-vate the ro'vvA of corn'. The iect of the operator are placed in 'thcstirrup-irons-I, lig.', If he wish to mo'vo the ploughs to the right ordeft, witli'the foot on 'the stirrup-ro'n the sont I will be thrown'in the opposite direction, and by its leverage, arid the weight of the operator, will cause the shovels to' bemnoved with ease and stendinesse 1. 'Ihe combination of the two axle-bars B B and the four upright standards A ,A A, and' cross-beam S, and'holts E. l

V2. 'Ihel combination of the sont-hoard' and seat-lever I with the' levers. L L, shovel-beams D D, and the movable pivot or standard C, substantially assnd for the purpose herein specified. A i A NATHAN s. Jonsson. Witnesses: i l f Faun E. BAGHELDE,

'.ixzos.l B. Harrelson. 

